1699558 - 360° video on youtube has wrong colors

Status: RESOLVED DUPLICATE of bug 1678989

(Core :: Graphics: CanvasWebGL, defect)

Description

[Michal K]

Attachment: Screenshot 2021-03-18 at 21.30.47.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0

Steps to reproduce:

1. Open 360° video located on this address: https://www.youtube.com/watch?v=h8VDCZlTTRQ

2. Check produced colors on the video.

Actual results:

Colors of the video are wrong. I attached screenshot of video with wrong colors.

Expected results:

Colors of the video should be alright. I tested it also in Safari and colors are alright, so that I think something is wrong in Firefox.

Comment 1

[Michal K]

Attachment: Screenshot of the video taken from Safari

Comment 2

[Michal K]

I was able to find this bug https://bugzilla.mozilla.org/show_bug.cgi?id=1659760 which was resolved in the past. It had similar effect on colors of video as it is shown in attached screenshot. Could it be related to reported problem?

Comment 3

[Michal K]

Attachment: Troubleshooting Information

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 5

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Thanks for the report. Good catch on this looking similar to bug 1659760 -- it does appear to be a similar issue with incorrect color mapping.

Moving this to the gfx component based on previous cases. Gfx folks, please pass back to media if needed and NI me if doing so.

Comment 6

[Cristian Fogel [:cfogel]]

Notes:

• confirmed on macOS 10.15 as well;
• severity-wise this might be set between S2-S3(feel free to re-adjust), since the issue appears to be limited to this format of video(s) as far as initial investigation;
• gfx.webrender.all - set as false as default; setting it on true does not change, issue still manifesting;
• there were some cases in which, the initial video was loaded and did not display anything until the adds were being played back(afterwards, they still shown the issue) so as far as verifying might want to skip adds and swap between this and another video to properly asses state.

Regression range:

• last good: 2021-01-14
• first bad: 2021-01-15;
• Pushlog URL
• Potential regressor: mozregression points towards bug 1640607.